Adjusting The Brightness - Sony BURANO MPC-2610 Operating Instructions Manual

Digital motion picture camera
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94
5. Shooting

Adjusting the Brightness

You can adjust the brightness by adjusting the
iris, gain, shutter speed, and by adjusting the
light level using ND filters. You can also make
adjustments automatically.
The target level for automatic brightness
adjustment is set using Auto Exposure >Level
(page 39) in the Shooting menu of the full
menu. You can also assign Auto Exposure
Level to an assignable button or assignable
dial (page 100).
[Note]
The gain cannot be adjusted in Cine EI mode. The
base sensitivity is fixed. Also, the brightness cannot
be adjusted automatically using the shutter speed.
Brightness auto adjustment using the iris and ND filter
is supported.
Selecting the Base Sensitivity
You can select from two types of base
sensitivity on the unit.
In Cine EI mode, you can set the base ISO to
ISO 3200 or ISO 800 using ISO/Gain/EI >Base
ISO (page 37) in the Shooting menu of the
full menu.
Selecting ISO 800 in normal lighting
conditions and selecting ISO 3200 in low
lighting conditions is recommended.
In Custom mode, you can set the base
sensitivity to High or Low using ISO/Gain/EI
>Base Sensitivity (page 37) in the Shooting
menu of the full menu.
Selecting Low in normal lighting conditions
and selecting High in low lighting conditions is
recommended.
[Tip]
You can also assign Base ISO/Sensitivity to an
assignable button (page 100).
Adjusting the Iris
You can adjust the iris to adjust the brightness.
[Note]
When a PL-mount lens is attached, iris control from the
unit and remote control is not supported.
Adjusting the iris automatically
This function adjusts the brightness according
to the subject. A lens that supports auto iris is
required.
1
If a lens with Auto Iris switch is attached,
set the switch to AUTO.
2
Display the Auto Iris direct menu
(page 100) and select Auto.
[Note]
When a PL-mount lens is attached, Auto Iris is set
to Off.
[Tip]
You can also assign Auto Iris to an assignable
button (page 100).
Adjusting the iris manually
1
Display the Auto Iris direct menu
(page 100) and select Manual.
2
Display the Iris direct menu (page 100)
so that the iris value is displayed on a
white background.
3
Turn the multi-function dial to adjust the
value.
[Tips]
• You can also operate the multi-function dial as
an IRIS dial (page 100) by assigning the IRIS
function to the multi-function dial.
• You can also assign the IRIS function to the
assignable dial of the remote control (page 100).
• For a lens with an iris ring, you can make manual
adjustments using the iris ring of the lens.
Temporarily adjusting automatically
Press the assignable button (page 100)
assigned with the Push Auto Iris function to
automatically adjust the iris temporarily while
the button is pressed.
The iris returns to the previous setting when
you release the button.
[Notes]
• When the Auto Iris switch of the lens is set to
MANUAL, the Auto Iris and Push Auto Iris functions on
the unit have no effect. Manual iris adjustments on
the unit also have no effect.
• Push Auto Iris cannot be executed when Iris >Bokeh
Control (page 39) in the Shooting menu is set to
On.
Adjusting the Exposure Index
In Cine EI mode, it is assumed that video
output with monitor LUT set to Off is recorded
as the main signal. By changing the brightness
of the image with monitor LUT set to On to
match an EI value, you can check the result
of post-production exposure sensitivity
adjustment while shooting.
You can change the EI value using ISO/Gain/EI
>Exposure Index (page 37) in the Shooting
menu of the full menu.
[Note]
When recording in Cine EI, it is recommended that you
keep the Exposure Index setting constant. If you change
the Exposure Index setting, brightness correction may
be very difficult to achieve in post-production, which
may make it impossible to reproduce the state when the
image was originally shot.
Adjusting the Gain
In Custom mode, you can adjust the gain to
adjust the brightness.
Adjusting the gain automatically
Display the AGC direct menu (page 100) and
select Auto.
[Tips]
• You can also perform the same adjustment by setting
Auto Exposure >AGC (page 39) in the Shooting
menu to On.
• You can also assign AGC to an assignable button
(page 100).
Adjusting the gain manually
You can control the gain when you want to
adjust the exposure while using a fixed iris
setting or when you want to prevent the gain
increasing due to AGC.
1
Display the AGC direct menu (page 100)
and select Manual.
2
Display the Gain Value direct menu
(page 100) and set the gain.
[Tips]
• You can change the gain preset value using ISO/
Gain/EI >ISO/Gain (page 37) in the Shooting menu
of the full menu.
• You can also assign Push AGC to an assignable
button, and set AGC to On temporarily by pressing
and holding the button.
[Note]
Push AGC cannot be executed when Iris >Bokeh Control
(page 39) in the Shooting menu of the full menu is
set to On.

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